From Seamwork:
Blazers can be daunting to purchase, let alone sew up. Delavan is one of the simplest, straightforward blazer patterns available. It has all the components of a tailored jacket, including a lapel collar, center back vent, and blind hem finish. With the traditional appearance of a classic blazer, Delavan can be paired with just about any other Seamwork pattern or ready-to-wear garment.
Adding a blazer to your wardrobe adds class and stretches some of your summer clothes into the cooler season. Sew Delavan in wool suiting and you have office wear. In a linen blend, Delavan is both casual and elegant. Pair it with Neenah, and you have yourself a classic outfit that works for office days and evenings out.
Because the construction of the blazer is intended to be simple, this pattern does not include instructions to create a fully lined blazer. If you would like to learn how to add a liner to Delavan, the article "A Lesson in Lining" in issue 22 of Seamwork will show you how.